(function() {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("pie"));
    let angle = 0; //角度，用来做简单的动画效果的
    let value = 55.33;
    option = {
      backgroundColor: "#061740",
      title: {
        text: "{a|" + value + "}{c|%}",
        x: "center",
        y: "center",
        textStyle: {
          rich: {
            a: {
              fontSize: 20,
              color: "#29EEF3",
            },
    
            c: {
              fontSize: 10,
              color: "#ffffff",
              // padding: [5,0]
            },
          },
        },
      },
      legend: {
        type: "plain",
        orient: "vertical",
        right: 0,
        top: "10%",
        align: "auto",
        data: [
          {
            name: "一",
            icon: "circle",
          },
          {
            name: "二",
            icon: "circle",
          },
          {
            name: "三",
            icon: "circle",
          },
          {
            name: "四",
            icon: "circle",
          },
        ],
        textStyle: {
          color: "white",
          fontSize: 16,
          padding: [10, 1, 10, 0],
        },
        selectedMode: false,
      },
      series: [
        {
          name: "ring5",
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            return {
              type: "arc",
              shape: {
                cx: api.getWidth() / 2,
                cy: api.getHeight() / 2,
                r: (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.6,
                startAngle: ((0 + angle) * Math.PI) / 180,
                endAngle: ((90 + angle) * Math.PI) / 180,
              },
              style: {
                stroke: "#0CD3DB",
                fill: "transparent",
                lineWidth: 1.5,
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "ring5",
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            return {
              type: "arc",
              shape: {
                cx: api.getWidth() / 2,
                cy: api.getHeight() / 2,
                r: (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.6,
                startAngle: ((180 + angle) * Math.PI) / 180,
                endAngle: ((270 + angle) * Math.PI) / 180,
              },
              style: {
                stroke: "#0CD3DB",
                fill: "transparent",
                lineWidth: 1.5,
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "ring5",
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            return {
              type: "arc",
              shape: {
                cx: api.getWidth() / 2,
                cy: api.getHeight() / 2,
                r: (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.65,
                startAngle: ((270 + -angle) * Math.PI) / 180,
                endAngle: ((40 + -angle) * Math.PI) / 180,
              },
              style: {
                stroke: "#0CD3DB",
                fill: "transparent",
                lineWidth: 1.5,
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "ring5",
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            return {
              type: "arc",
              shape: {
                cx: api.getWidth() / 2,
                cy: api.getHeight() / 2,
                r: (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.65,
                startAngle: ((90 + -angle) * Math.PI) / 180,
                endAngle: ((220 + -angle) * Math.PI) / 180,
              },
              style: {
                stroke: "#0CD3DB",
                fill: "transparent",
                lineWidth: 1.5,
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "ring5",
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            let x0 = api.getWidth() / 2;
            let y0 = api.getHeight() / 2;
            let r = (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.65;
            let point = getCirlPoint(x0, y0, r, 90 + -angle);
            return {
              type: "circle",
              shape: {
                cx: point.x,
                cy: point.y,
                r: 4,
              },
              style: {
                stroke: "#0CD3DB", //粉
                fill: "#0CD3DB",
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "ring5", //绿点
          type: "custom",
          coordinateSystem: "none",
          renderItem: function (params, api) {
            let x0 = api.getWidth() / 2;
            let y0 = api.getHeight() / 2;
            let r = (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.65;
            let point = getCirlPoint(x0, y0, r, 270 + -angle);
            return {
              type: "circle",
              shape: {
                cx: point.x,
                cy: point.y,
                r: 4,
              },
              style: {
                stroke: "#0CD3DB", //绿
                fill: "#0CD3DB",
              },
              silent: true,
            };
          },
          data: [0],
        },
        {
          name: "总",
          type: "pie",
          radius: ["58%", "45%"],
          silent: true,
          clockwise: true,
          startAngle: 90,
          z: 0,
          zlevel: 0,
          label: {
            normal: {
              position: "center",
            },
          },
          data: [
            {
              value: value,
              name: "",
              itemStyle: {
                normal: {
                  color: {
                    // 完成的圆环的颜色
                    colorStops: [
                      {
                        offset: 0,
                        color: "#4FADFD", // 0% 处的颜色
                      },
                      {
                        offset: 1,
                        color: "#28E8FA", // 100% 处的颜色
                      },
                    ],
                  },
                },
              },
            },
            {
              value: 100 - value,
              name: "",
              label: {
                normal: {
                  show: false,
                },
              },
              itemStyle: {
                normal: {
                  color: "#173164",
                },
              },
            },
          ],
        },
    
        {
          name: "",
          type: "gauge",
          radius: "58%",
          center: ["50%", "50%"],
          startAngle: 0,
          endAngle: 359.9,
          splitNumber: 8,
          hoverAnimation: true,
          axisTick: {
            show: false,
          },
          splitLine: {
            length: 60,
            lineStyle: {
              width: 5,
              color: "#061740",
            },
          },
          axisLabel: {
            show: false,
          },
          pointer: {
            show: false,
          },
          axisLine: {
            lineStyle: {
              opacity: 0,
            },
          },
          detail: {
            show: false,
          },
          data: [
            {
              value: 0,
              name: "",
            },
          ],
        },
      ],
    };
    
    //获取圆上面某点的坐标(x0,y0表示坐标，r半径，angle角度)
    function getCirlPoint(x0, y0, r, angle) {
      let x1 = x0 + r * Math.cos((angle * Math.PI) / 180);
      let y1 = y0 + r * Math.sin((angle * Math.PI) / 180);
      return {
        x: x1,
        y: y1,
      };
    }
    
    function draw() {
      angle = angle + 3;
      myChart.setOption(option, true);
      //window.requestAnimationFrame(draw);
    }
    
    setInterval(function () {
      //用setInterval做动画感觉有问题
      draw();
    }, 100);    
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(option);
    window.addEventListener("resize", function() {
      myChart.resize();
    });
  })();